chore: promoter demo churn 2026-05-20T15:30:10Z

Author: gitops-promoter-demo-labs-repo[bot]

demo-apps/guestbook/values.yaml

@@ -2,7 +2,7 @@ replicaCount: 1
 
 # Bumped by manifests/demo-churn/github CronJob; surfaces in pod annotations for every GitHub guestbook environment.
 demoChurn:
-  lastBumped: "2026-05-20T15:15:10Z"
+  lastBumped: "2026-05-20T15:30:10Z"
 
 image:
   repository: gcr.io/google-samples/gb-frontend